Add Putnam's remove-stress script

NEWS

@@ -8,6 +8,7 @@ DFHack Future
           stockpile settings to a file. They can be used to migrate stockpile
           settings between worlds and saves.
     New scripts:
+        - remove-stress [all]: set selected or all units unit to -1,000,000 stress
     Misc improvements:
         - cmd-prompt can now access selected items, units, and buildings
 

Readme.rst

@@ -2422,6 +2422,10 @@ but in the short term your dwarves will get much more joyful.
 Internals: the thoughts are set to be very old, so that the game remove them
 quickly after you unpause.
 
+remove-stress
+=============
+Sets stress to -1,000,000; the normal range is 0 to 500,000 with very stable or very stressed dwarves taking on negative or greater values respectively.  Applies to the selected unit, or use "remove-stress all" to apply to all units.
+
 setfps
 ======
 

scripts/remove-stress.lua

@@ -0,0 +1,14 @@
+-- Sets stress to negative one million
+-- With unit selected, affects that unit.  Use "remove-stress all" to affect all units.
+
+--By Putnam; http://www.bay12forums.com/smf/index.php?topic=139553.msg5820486#msg5820486
+
+local args = {...}
+
+if args[1]=='all' then
+    for k,v in ipairs(df.global.world.units.active) do
+        v.status.current_soul.personality.stress_level=-1000000
+    end
+else
+    dfhack.gui.getSelectedUnit().status.current_soul.personality.stress_level=-1000000
+end